Techno Innov Pi RTC ma le NVMEM Extention System User Manual

Meafaigaluega ua umaview:
O le PiRTC_SRM Board v0.2 o se atina'e fa'aeletonika ma fa'ata'ita'iga fa'apipi'i laupapa fa'atulagaina mo komipiuta ta'itasi (SBC) pei ole OrangePi po'o le Raspberry Pi SBCs. O loʻo faʻaalia ai le RTC ma le Super-Capa power backup ma 64 bytes o le RAM e le faʻafefe.

Seti meafaigaluega:
Fa'afeso'ota'i le laupapa PiRTC_SRM i le SBC e fa'aoga ai le feso'ota'iga 26-pin, fa'amautinoa le fetaui lelei.

Polokalama faʻatulagaina:
Fa'atulaga lau SBC e iloa ma fa'aoga le RTC ma le NVMEM vaega e saunia e le PiRTC_SRM board.

Atina'e Si'osi'omaga:
Afai e te manaʻo e sui le mamanu poʻo le puna files o le PiRTC_SRM laupapa, e mafai ona e faʻaogaina KiCad EDA (GPL) mo le faʻasaʻoina ma le faʻapitoa.

Folasaga

O lo'o e faitauina le System Reference Manual mo le Pi RTC.

O le Pi RTC o se atina'e fa'aeletonika ma fa'ata'ita'iga fa'apipi'i laupapa mo komipiuta Komiti Ta'itasi (SBC) pei ole OrangePi po'o le Raspberry PI SBC's.
O le Pi RTC e maua ai le RTC ma le Super-Capa power backup ma le 64 bytes o le RAM e le faʻafefe.

E fa'aogaina e le Komiti Fa'atonu le 26 pine fa'asologa o le feso'ota'iga fa'alautele masani o lo'o maua i le tele o SBC fa'atasi ai ma se foliga e latalata i le ulua'i Raspberry Pi, e masani ona fetaui ma le pine o le 40 pine connector.
O le Pi RTC ua mamanuina mo tagata fa'aoga e fiafia i le atina'eina o le ARM e fa'aaoga ai na'o polokalama e leai se totogi, leai se totogi ma tatala punaoa.

O faʻamatalaga uma e uiga i le mamanu o loʻo avanoa ma o faʻamaumauga uma o vaega e mafai ona maua saoloto. E mafai ona e sii maia le puna files mo le Pi RTC ma suia i latou e faʻaaoga ai le KiCad 1 EDA (GPL) e tusa ai ma aiaiga laisene o loʻo maua i le vaega laisene.
E mafai ona e fatuina ma gaosia lau lava Pi RTC poʻo se faʻasologa faʻaleleia (ae le faʻatau atu).

Laisene

Laisene fa'amaumauga

O le pepa nei o lo'o i lalo ole Creative Commons CC BY-SA-NC 4.0 2 License.

O loʻo tusia i le LATEX ma o le PDF version e faʻaaogaina e faʻaaoga ai le pdflatex.

Laisene meafaigaluega

O meafaigaluega a le Pi RTC ma ata o lo'o i lalo ole Creative Commons CC BY-SA-NC 4.0 3 License.
E mafai ona e gaosia lau lava kopi muamua po'o le suiga o le Pi RTC, ma fa'aoga i le mea e te mana'o ai, ae aua le fa'atau atu, tusa lava pe leai se tupe mama.

Laisene polokalame
O polokalame uma exampO mea na faia mo le Pi RTC o lo'o i lalo ole Laisene GPLv3.

Meafaigaluega

Fua
Ata 1 o loʻo tuʻuina atu ai tulaga eseese ma tulaga o elemene autu o le Pi RTC.

Feso'ota'i

P1 Feso'ota'i
P1 feso'ota'iga o se fa'aulutala fa'atūina 2.54mm (0.1 inisi), fa'atasi ai ma laina 2 o pine e 13. O feso'ota'iga P1 e maua ai le avanoa i le fa'aulutala fa'alautele PI masani.

Pine #	Fa'amatalaga	Faailoga RPi
1	+3.3V mai Pi	+3.3V
2	+5V mai Pi (totogi RTC)	+5V
3	SDA : Fa'amaumauga Fa'asologa mo pasi I2C	I2C1 SDA
4	+5V mai Pi (totogi RTC)	+5V
5	SCL : Uati mo pasi I2C	I2C1 SCL
6	GND : Eleele	GND
7	RTC GPIO	GPIO 4
8	Le fa'aaogaina – Le Feso'ota'i	–
9	GND : Eleele	GND
10 i le 13	Le fa'aaogaina – Le Feso'ota'i	–
14	GND : Eleele	GND
15 i le 19	Le fa'aaogaina – Le Feso'ota'i	–
20	GND : Eleele	GND
21 i le 24	Le fa'aaogaina – Le Feso'ota'i	–
25	GND : Eleele	GND
26	Le fa'aaogaina – Le Feso'ota'i	–

Fa'aeletonika

O le Pi RTC na fausia e fa'aaoga ai le KiCad 4 EDA software suite mo le fa'atūina o ata ma laupapa fa'asalalau lolomi.

Va'ai itulau 9 i fa'aopoopoga mo fa'asologa atoa. O faʻapogai mo faʻataʻitaʻiga o loʻo avanoa mo le download mai le tindie product page ma le Pi RTC directory 5 ile techdata.techno-innov.fr.

Igoa Fa'amatalaga

U1 NXP PCF85363 RTC Uati.

U2 TI LP2985 DC-DC la'asaga i lalo liliu.

SC1 Bussmann 1 Farad supercapacitor.

I2C

O le Pi RTC e fa'aaogaina le pasi I2C mai le 26 pine Pi connector. O le pasi 1 o lo'o umia le PCF85363 RTC uati ile tuatusi 0x51.

I2C tuatusi
Siata 3 o loʻo faʻaalia uma ai tuatusi I2C mo vaega o loʻo faʻaaogaina i le PiRTC.

I2C Vaega	7 bits tuatusi I2C	I2C tuatusi + R / W bit
Uati PCF85363 RTC	0x51	0xA2 / 0xA3

RTC Uati

O le Pi RTC e aofia ai le PCF85363 RTC faʻatasi ai ma le faʻaogaina o le mana super-capacitor.
O le faʻaaogaina o le Super-capacitor mo le faʻaleleia o le eletise e faʻaititia ai le tulagavae o le siosiomaga ma aveese le manaʻoga e sui (ma lafoai) le maa i le faʻaaluina o se taimi puʻupuʻu, lea e i le va o le tasi ma le lua masina, ae tatau ona lava mo le tele o talosaga.
Ole fatu Linux e iai le lagolago mo le PCF85363 RTC ile rtc-pcf85363 module (CONFIG_RTC_DRV_PCF85363). A maeʻa ona utaina le rtc-pcf85363 module i le fatu, e tatau ona e faʻaopopo le RTC i le lisi o masini ile I2C pasi 1: echo pcf85363 0x51 > /sys/bus/i2c/devices/i2c-1/new_device
E le mana'omia lenei mea pe afai o le laau masini ua uma ona iai fa'amatalaga talafeagai.
E mafai ona e mauaina le RTC i le hwclock command (mai le util-linux package i Debian based GNU/Linux distributions) o se tasi o le /dev/rtcN (sui 'N' i le numera RTC talafeagai).

NVMEM

O le PCF85363 RTC e aofia ai le 64 bytes o le RAM e le faʻafefe (pe a faʻaogaina le mana supercapacitor).
Ina ia mafai ona e mauaina lenei manatua e tatau ona i ai le seti o loʻo i lalo i lau Linux Kernel.
- CONFIG_RTC_NVMEM=y
- CONFIG_NVMEM=y
- CONFIG_NVMEM_SYSFS=y
Va'ai i la matou Wiki mo nisi fa'amatalaga e uiga i le fa'aogaina o le NVMEM.

Polokalama

Na matou matauina o faʻamatalaga faʻapipiʻi e vave tele ona faʻapipiʻi i totonu o faʻamaumauga.

O le ae mauaina uma faʻamatalaga talafeagai i luga o la matou wiki lautele: http://wiki.techno-innov.fr/index.php/Products/PiRTC

Fa'atonu toe iloilo tala'aga

v0.1

E le'i fa'atauina atu lenei iloiloga a le Komiti Fa'atonu.

Muamua faʻataʻitaʻiga faʻataʻitaʻiga, gaosia i luga o le talosaga a le tagata faʻatau.

v0.2

Fa'amatalaga moni na fa'atau atu e pei o le tusiaina o lenei fa'amaumauga.

Ave le RTC GPIO Pin i le P1 pin7 nai lo le P1 pine 8 (UART Tx).

Fa'aopoopoga

Matematika
O le laupapa schematics ma le PCB faʻatulagaina na faia e faʻaaoga ai le KiCad 7 EDA software suite. E mafai ona e sii maia punaoa i le PiRTC itulau 8 i luga wiki.techno-innov.fr.

BOM

Fa'amatalaga Vaega	Ref	Module	Nb	Fa'atau	Fa'atau ref	Farnell
xRpi feso'ota'iga
2×13 Socket Si'usi'u Fa'alautele	–	TH	1	–	SAMTEC	–
RTC
PCF85363 RTC I2C 64Bytes SRAM	U1	TSSOP- 8	1	NXP	PCF85363ATT/AJ	2775939
Xtal CMS ABS10 32,768KHz	Y1	ABS10	1	APERAKONO	ABS10-32.768KHZ-7-T	2101351
Pusa 15pF 0603 NPO 50V 5%	C1, C2	0603	2	MULTIKO	MC0603N150J500CT	1759055
LDO 3,0V	U2	SOT23-5	1	Texas Ins- pu	LP2985AIM5- 3.0/NOPB	1469133
Diode 1N4148	D1	FA-123	1	Meaʻai Inc	1N4148W-7-F,	1776392
Super capacitor 1F, 2,7V	SC1	TH-8mm	1	BUSSMANN	HV0810-2R7105-R	2148482
Resistor 33 Ohms – fa'atapula'a i le taimi nei	R1	0603	1	MULTIKO	MCWR06X33R0FTL	2447344

Manatua: O vaega o lo'o fa'aaogaina i luga ole Komiti Fa'atonu e mafai ona suia mo fa'asinoga tutusa e aunoa ma se fa'aaliga muamua

Fa'amatalaga toe iloiloga o pepa

Fa'aliliuga	Aso	Tusitala	Fa'amatalaga
0.1	Ianuari, 24 2025	Nathaël Pajani	Uluai iloiloga

Fa'ailoga
O le Pi RTC o lo'o tu'uina atu "e pei ona i ai" e aunoa ma se fa'amaoniga o so'o se ituaiga, pe fa'aalia pe fa'aalia, e aofia ai, ae le fa'atapula'aina, fa'amaonia fa'amaonia o le fa'atauina ma le talafeagai mo se fa'amoemoe fa'apitoa. O le tulaga lamatia atoa e uiga i le lelei ma le faatinoga o le Pi RTC o loʻo ia te oe. Afai o le Pi RTC e faʻamaonia le faaletonu, e te faʻatauina le tau o auaunaga uma e manaʻomia, toe faʻaleleia pe faʻasaʻo.

Fesili e Fai soo (FAQ)

E mafai ona ou fa'atau atu la'u lava kopi o le laupapa PiRTC_SRM?
E tusa ai ma aiaiga o le laisene, e fa'atagaina oe e faia ma gaosia ni fa'aliliuga o le laupapa PiRTC_SRM mo le fa'aoga patino, ae le mo le fa'atauga fa'apisinisi.
E fetaui le laupapa PiRTC_SRM ma SBC uma?
O le PiRTC_SRM laupapa ua mamanuina ina ia fetaui ma komipiuta a le Komiti Tutoatasi o loʻo faʻaalia se foliga tutusa ma le pine i le Raspberry Pi.

Pepa / Punaoa

Techno Innov Pi RTC ma le NVMEM Extention System [pdf] Tusi Taiala
Board v0.2, Pi RTC ma le NVMEM Extention System, Pi RTC ma, NVMEM Extention System, Extention System, System

Fa'asinomaga

Tusi Taiala

Techno Innov Pi RTC ma le NVMEM Extention System

Fa'amatalaga o oloa

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